Ferns oF NEw Mexico 69 
with the species. The differences in form do not appear 
to be the result of variations in environment, for on 
Tortugas Mountain, for instance, both grow under ex- 
actly the same conditions. 
6. NOTHOLAENA STANDLEYI Maxon.2. Common in 
nearly all the lower ranges from the Black Range and 
Socorro Mountain to the Dona Ana and Guadalupe 
Mountains, and southward. Reported also from Las 
Lagunitas, near Las Vegas, by Mr. Brandegee; but it 
scarcely seems possible that the species can be found in 
such a remote locality. This is one of the most charac- 
teristic and handsome ferns of the low, arid mountains, 
growing on both limestone and granitic rocks. Common- 
ly, in the dry weather that usually prevails, the fronds 
appear shriveled, but in damp weather, or if placed 
in water, they quickly resume a plane form. 
7. NOTHOLAENA DEALBATA (Pursh) Kunze. Big Hat- 
chet Mountains, Black Range, Santo Domingo, Sandia 
Mountains, Burro Mountains, and Tortugas Mountain. 
Reported from Las Lagunitas near Las Vegas by Mr. 
Brandegee. Although it occurs in these widely separated 
localities, this is found only locally. It is very abundant 
on Tortugas Mountain, on very dry limestone rocks, 
but strangely enough it is not known from the nearby 
gans. So far as known, this fern is confined to lime- 
stone in New Mexico. 
8. NoTHOLAENA FENDLERI Kunze. Santa Fe, Sandia 
Mountains, Cimarron Canyon, and Socorro. Appar- 
ently this is very rare in the State, and neither of the 
writers has ever found it. The type was collected by 
August Fendler, probably somewhere about Santa Fe, 
in 1847. The species reaches the southern limit of its 
range in New Mexico, and is said to be more common 
in Colorado. 
2 This name has been proposed recently for the fern known usually as 
Ni Hookeri D. C. Eaton. See, Amertcan Fern Jovurnat, 5: 1. 
1915. 
